🌟 Miss Brenda's Grade 4 Math Class 🌟

🔧 What is a Factor?

A **factor** is a whole number that divides evenly into another number with no remainder.

If you can divide a number by another number and there is nothing left over, then that number is a factor.

🌟 Let’s Find Factors

Factors of 12

1 × 12 = 12
2 × 6 = 12
3 × 4 = 12

The factors of 12 are: 1, 2, 3, 4, 6, 12

Factors of 18

1 × 18 = 18
2 × 9 = 18
3 × 6 = 18

Factors of 18: 1, 2, 3, 6, 9, 18

Factors of 24

1, 2, 3, 4, 6, 8, 12, 24

🛠️ How to Find All Factors Systematically

Start with 1 and the number itself.
Check every number from 2 up to half of the number.
If it divides evenly (no remainder), it is a factor.
Write the factor pairs.

✏️ Let’s Practice Together, My Dear Student!

Practice 1: List the Factors

1. Factors of 16 → 1, 2, 4, 8, 16
2. Factors of 20 → 1, 2, 4, 5, 10, 20
3. Factors of 30 → 1, 2, 3, 5, 6, 10, 15, 30

Practice 2: Factor Pairs

For 36, write all factor pairs:
1 × 36, 2 × 18, 3 × 12, 4 × 9, 6 × 6

Practice 3: Word Problems (Canadian Style)

1. A teacher has 24 pencils. She wants to put the same number of pencils in each bag. What are all the possible numbers of bags she can make?
Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24 bags

2. There are 18 cookies. What are all the ways we can share them equally?
Factors of 18: 1, 2, 3, 6, 9, 18

Challenge Question

List all factors of 48.
1, 2, 3, 4, 6, 8, 12, 16, 24, 48

🎲 Fun Tip

The number 1 is a factor of every number. The number itself is also always a factor. Every number has at least two factors: 1 and itself (except 1, which has only one).

Fantastic Job, My Dear Student! 🎉

You now understand what factors are and how to find them! This skill will help you with multiplication, division, and many other topics coming soon.

I am so proud of you. Try finding the factors of some numbers around you (like your age or the number of days in a week)!

💕 You are smart. You are kind. You can do hard things.